/Engine/Source/Runtime/Slate/Public/Widgets/Layout/SBackgroundBlur.h
Note: For low-spec machines where the blur effect is too computationally expensive, a user-specified fallback image is used instead (effectively turning this into a Border)
class SBackgroundBlur : public [SCompoundWidget](API\Runtime\SlateCore\Widgets\SCompoundWidget)
bool
bApplyAlphaToBlur
TSlateDeprecate...
BlurRadius
TSlateDeprecate...
BlurStrength
constFSlateBru...
LowQualityFallbackBrush